Crosswords Solver

Answer: chitin
Answer	Crossword Clue
CHITIN	Principal component of arthropod exoskeletons
CHITIN	Main component of a crab shell
chitin	nitrogen-containing polysaccharide, related chemically to cellulose, that forms a semitransparent horny substance and is a principal constituent of the exoskeleton, or outer covering, of insects, crustaceans, and arachnids

chitin	the main component of insect shells

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.

Answer: chitin